Chased that cell for a while, wasnt planning it so I was playing catchup and I got stuck in rush hour traffic Had a great view of it while driving north from chelt on the M5 prob about 16.15 - It had this awesome tail of scud feeding up the side of a hill into the cloud base which was a good few hundred metres higher than the hill. It lost this as it cleared the hill and developed what looked like a hail shaft on the SW edge, I think the radar shows it at 17.15. I havnt seen any reports of hail though so could have been the sun shining on a rain shaft I guess.
Didnt see any lightning, prob too far away from the action and no piccies either! If using a phone while driving is illegal then taking photos is probably not the best idea...
Edit: UKWW topic on same cell, so it was hail the loweings pictured here are not what I was describing above though, that was viewed from the M5 as the storm came up the side of the hill West of Evesham... Would have loved to have been in Upton Snodsbury! (real place, thank you V5 beta)